Argentina stocks rebound on crude, peso slides

* The benchmark MerVal stocks index .MERV gained 1.02 percent to 1,065.67 points, rebounding after three sessions of losses as energy shares got a boost from a sharp rise in U.S. crude oil futures.

* The gains came despite an announcement by equity index provider MSCI Barra MXB.N that it will reclassify Argentina as a frontier market from an emerging market, due to its restrictions on capital flows.